feat(AppEarTag): 添加养殖场、养殖舍和养殖栏的必填验证

- 在 etAdd.vue 文件中，为养殖场、养殖舍和养殖栏的表单项添加了必填验证规则
- 验证规则仅在 isAdd 变量为真时生效，确保在添加模式下进行验证
- 此修改提高了数据输入的完整性和用户体验

project/xumu/AppEarTag/etAdd.vue

@@ -76,13 +76,13 @@ export default {
       <ai-card title="基础信息">
         <div class="grid c-3">
           <template v-if="isAdd">
-            <el-form-item label="养殖场" prop="farmId">
+            <el-form-item label="养殖场" prop="farmId" :rules="{required:isAdd,message:'请选择养殖场'}">
               <ai-select v-model="detail.farmId" :instance="instance" :action="`/api/siteUser/querySiteByUserId?userId=${userinfo.id}`" :prop="{label:'name'}"/>
             </el-form-item>
-            <el-form-item label="养殖舍" prop="houseId">
+            <el-form-item label="养殖舍" prop="houseId" :rules="{required:isAdd,message:'请选择养殖舍'}">
               <ai-select v-model="detail.houseId" :instance="instance" :action="`/api/siteUser/querySiteById?id=${detail.farmId||-1}`" :prop="{label:'name'}"/>
             </el-form-item>
-            <el-form-item label="养殖栏" prop="penId">
+            <el-form-item label="养殖栏" prop="penId" :rules="{required:isAdd,message:'请选择养殖栏'}">
               <ai-select v-model="detail.penId" :instance="instance" :action="`/api/siteUser/querySiteById?id=${detail.houseId||-1}`" :prop="{label:'name'}"/>
             </el-form-item>
           </template>